Turbidity & Optical Density: NIR Absorption Probe

Product Announcement from optek-Danulat, Inc.

Turbidity & Optical Density: NIR Absorption Probe-Image

The sensor uses the light in the near infrared range (NIR) from 730 to 970 nm. A precisely defined, constant light beam penetrates the process medium. The attenuation of the light intensity, caused by absorption and/or scattering by dissolved and undissolved substances, is detected by a hermetically sealed photo diode.

The probe comes in six different optical path lengths (OPL) from 1 to 40 mm. The optical filter on the lamp side adapts the wavelength for specific applications and allows color-insensitive concentration measurements in the near infrared range. The AS16-N is available with a 100 mm extended insertion depth for larger vessels.

The seal-less, sapphire window design eliminates crevices and gaps to assure the highest level of sterility, cleanability and sensor integrity. The probe body demonstrates extreme durability and fulfills the CIP/SIP requirements demanded by ultra-sanitary process environments. NIST-traceable validation accessories are available as option for absolute measurement confidence.

AS16-N Features:

  • Inline real time process monitoring
  • Superior sapphire window with no seals, gaps or crevices
  • Concentration measurement insensitive to color changes
  • Extremely low maintenance
  • CIP/SIP-compatible
  • All wetted material and surface finishes are certifiable and traceable
  • NIST-Traceable validation options
  • Conforms to FDA requirements